US6936299B2 - Method and device for in situ layer thickness determination - Google Patents

Method and device for in situ layer thickness determination Download PDF

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Publication number
US6936299B2
US6936299B2 US10/434,165 US43416503A US6936299B2 US 6936299 B2 US6936299 B2 US 6936299B2 US 43416503 A US43416503 A US 43416503A US 6936299 B2 US6936299 B2 US 6936299B2
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United States
Prior art keywords
layer thickness
sensor
coating process
component
coating
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Expired - Fee Related, expires
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US10/434,165
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English (en)
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US20030230138A1 (en
Inventor
Ulrich Bast
Roman Beyer
Ralph Reiche
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Siemens AG
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Siemens AG
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Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BEYER, ROMAN, REICHE, RALPH, BAST, ULRICH
Publication of US20030230138A1 publication Critical patent/US20030230138A1/en
Priority to US11/127,103 priority Critical patent/US20050229847A1/en
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Publication of US6936299B2 publication Critical patent/US6936299B2/en
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/54—Controlling or regulating the coating process
    • C23C14/542—Controlling the film thickness or evaporation rate
    • C23C14/545—Controlling the film thickness or evaporation rate using measurement on deposited material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
    • C23C16/52—Controlling or regulating the coating process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
    • C23C4/16—Wires; Tubes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness

Definitions

  • the invention generally relates to a method and/or device for layer thickness determination.
  • the layer thickness is determined by way of a metallographic examination.
  • a wire specimen is introduced into the coating process at a location which is representative of a component which is to be coated. After the coating process has ended, the wire specimen is removed and is then, expensively, cut open and examined. Each coating process is monitored and documented by the use of concomitant working specimens. These measuring and testing methods do not allow coating processes which are not to spec to be corrected as they are ongoing. Therefore, this is a very expensive form of quality assurance.
  • An object may be achieved by a method or device in which a sensor is exposed to the coating process in the same way as the component which is to be treated, and an electrical property of this sensor is measured. This property changes as a result of the coating process, so that in situ layer thickness determination during the coating process is possible.
  • the method is suitable in particular for alitizing processes in which aluminum is introduced into a component (refurbishment).
  • the electrical resistance is preferably used as a simple electrical measurement variable which is representative of the coating result.
  • the sensor is, for example, a sintered body, since a sintered body can take up the applied coating material in a representative way (accumulation and diffusion rate).
  • a sintered body can take up the applied coating material in a representative way (accumulation and diffusion rate).
  • it may be, for example, also porous or, for example, made from the material of the component which is to be coated or from MCrAlY.
  • the method and/or device is particularly suitable for coating processes in the interior of a component, since these are not readily accessible.
  • FIG. 1 shows a component with a sensor, which component is coated, with the method according to an embodiment of the invention being used for layer thickness determination, and
  • FIG. 2 shows a measuring arrangement having a sensor for the method according to an embodiment of the invention.
  • FIG. 1 shows a hollow component 1 which is to be coated, for example, on an inner surface 4 .
  • the method can also be used for the in situ layer thickness determination of external surfaces.
  • a layer 7 of the material M is applied to the inner surface 4 by means of known processes, such as for example CVD (chemical vapor deposition) processes, electrochemical processes or other known coating processes.
  • a sensor 10 is arranged in the cavity 19 of the component 1 and is therefore coated in the same way as the component 1 which is to be treated.
  • FIG. 2 shows an enlarged view of the sensor 10 .
  • the sensor 10 consists of a material which has an electrical property, such as for example its electrical resistance, impedance, capacitance or the like, which changes as a result of some form of interaction with the material M which forms the layer.
  • the sensor 10 may be of any desired shape, i.e. may, for example, be a piece of wire or in the shape of a small plate.
  • the sensor 10 is connected to an electrical measuring unit 16 via electrical lines 13 ; the measuring unit measures the electrical parameter which changes as a result of the sensor 10 being coated with the material M.
  • the way in which the layer thickness is dependent on the electrical variable is known from calibration curves determined in preliminary tests.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Chemical Vapour Deposition (AREA)
US10/434,165 2002-05-10 2003-05-09 Method and device for in situ layer thickness determination Expired - Fee Related US6936299B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/127,103 US20050229847A1 (en) 2002-05-10 2005-05-12 Method and device for in situ layer thickness determination

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02010628A EP1361292B1 (de) 2002-05-10 2002-05-10 Verfahren zur In-situ-Schichtdickenbestimmung
EP02010628.2 2002-05-10

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/127,103 Division US20050229847A1 (en) 2002-05-10 2005-05-12 Method and device for in situ layer thickness determination

Publications (2)

Publication Number Publication Date
US20030230138A1 US20030230138A1 (en) 2003-12-18
US6936299B2 true US6936299B2 (en) 2005-08-30

Family

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Application Number Title Priority Date Filing Date
US10/434,165 Expired - Fee Related US6936299B2 (en) 2002-05-10 2003-05-09 Method and device for in situ layer thickness determination
US11/127,103 Abandoned US20050229847A1 (en) 2002-05-10 2005-05-12 Method and device for in situ layer thickness determination

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/127,103 Abandoned US20050229847A1 (en) 2002-05-10 2005-05-12 Method and device for in situ layer thickness determination

Country Status (6)

Country Link
US (2) US6936299B2 (de)
EP (1) EP1361292B1 (de)
JP (1) JP2003329406A (de)
CN (1) CN1456704A (de)
DE (1) DE50204021D1 (de)
ES (1) ES2247219T3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050229847A1 (en) * 2002-05-10 2005-10-20 Ulrich Bast Method and device for in situ layer thickness determination
WO2022015266A3 (en) * 2020-07-13 2022-03-24 Tusas- Turk Havacilik Ve Uzay Sanayii Anonim Sirketi A measuring system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2974174B1 (fr) * 2011-04-18 2013-04-26 Peugeot Citroen Automobiles Sa Procede pour controler la couche de protection anti-corrosion deposee a l'interieur des corps creux de la caisse d'un vehicule automobile
CN115652269A (zh) * 2022-11-07 2023-01-31 东莞金坤新材料股份有限公司 一种磁溅射真空镀膜永磁体的制造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898746A (en) * 1988-06-28 1990-02-06 Rca Licensing Corporation Material deposition process analysis system
US5057781A (en) * 1989-07-31 1991-10-15 At&T Bell Laboratories Measuring and controlling the thickness of a conductive coating on an optical fiber
US5142228A (en) * 1989-04-24 1992-08-25 Corning Incorporated Method for statically or dynamically monitoring the thickness of electrically-conductive coatings on optical fibers
JPH05215290A (ja) * 1992-02-03 1993-08-24 Imae Kogyo Kk 誘導加熱コイルの耐熱絶縁体
US5466638A (en) * 1990-06-26 1995-11-14 Mitsubishi Denki Kabushiki Kaisha Method of manufacturing a metal interconnect with high resistance to electromigration
US6436246B1 (en) * 1997-01-27 2002-08-20 Micron Technology, Inc. Collimated sputter deposition monitor using sheet resistance

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004149A1 (de) * 1980-02-05 1981-08-13 Siemens AG, 1000 Berlin und 8000 München Verfahren zur reproduzierbaren herstellung metallischer schichten
DE3123427C2 (de) * 1981-06-12 1985-10-24 Siemens AG, 1000 Berlin und 8000 München Anordnung zum Messen des elektrischen Widerstandes und der Temperatur von durch Aufdampfen oder Aufstäuben auf Substraten abgeschiedenen dünnen, metallischleitenden Schichten während der Schichtherstellung
DE3613112A1 (de) * 1986-04-18 1987-10-22 Grundig Emv Einrichtung zum messen der magnetischen eigenschaften von durch sputtern oder bedampfen aufgebrachten schichten waehrend des bearbeitungsvorganges
EP0284909B1 (de) * 1987-03-31 1993-05-26 Siemens Aktiengesellschaft Sensor zur Messung des Stromes oder der Spannung von auf einem Referenzsubstrat vorhandenen elektrisch leitenden Schichten
US4851300A (en) * 1988-05-09 1989-07-25 United Technologies Corporation Precoat for improving platinum thin film adhesion
ES2247219T3 (es) * 2002-05-10 2006-03-01 Siemens Aktiengesellschaft Procedimiento para la determinacion in situ del espesor de una capa.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898746A (en) * 1988-06-28 1990-02-06 Rca Licensing Corporation Material deposition process analysis system
US5142228A (en) * 1989-04-24 1992-08-25 Corning Incorporated Method for statically or dynamically monitoring the thickness of electrically-conductive coatings on optical fibers
US5057781A (en) * 1989-07-31 1991-10-15 At&T Bell Laboratories Measuring and controlling the thickness of a conductive coating on an optical fiber
US5466638A (en) * 1990-06-26 1995-11-14 Mitsubishi Denki Kabushiki Kaisha Method of manufacturing a metal interconnect with high resistance to electromigration
JPH05215290A (ja) * 1992-02-03 1993-08-24 Imae Kogyo Kk 誘導加熱コイルの耐熱絶縁体
US6436246B1 (en) * 1997-01-27 2002-08-20 Micron Technology, Inc. Collimated sputter deposition monitor using sheet resistance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050229847A1 (en) * 2002-05-10 2005-10-20 Ulrich Bast Method and device for in situ layer thickness determination
WO2022015266A3 (en) * 2020-07-13 2022-03-24 Tusas- Turk Havacilik Ve Uzay Sanayii Anonim Sirketi A measuring system

Also Published As

Publication number Publication date
EP1361292A1 (de) 2003-11-12
ES2247219T3 (es) 2006-03-01
CN1456704A (zh) 2003-11-19
US20030230138A1 (en) 2003-12-18
US20050229847A1 (en) 2005-10-20
JP2003329406A (ja) 2003-11-19
EP1361292B1 (de) 2005-08-24
DE50204021D1 (de) 2005-09-29

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Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BAST, ULRICH;BEYER, ROMAN;REICHE, RALPH;REEL/FRAME:014262/0222;SIGNING DATES FROM 20030509 TO 20030519

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Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

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Effective date: 20090830